International Journal of Geo-Information Article Spatial Distribution and Morphological Identification of Regional Urban Settlements Based on Road Intersections Liang Kong 1,2,3,4 , Zhengwei He 1,3,*, Zhongsheng Chen 4 , Mingliang Luo 4, Zhong Du 4 , Fuquan Zhu 5 and Li He 6 1 State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China;
[email protected] 2 Key Laboratory of Earth Exploration and Information Technology of Ministry of Education, Chengdu University of Technology, Chengdu 610059, China 3 College of Geophysics, Chengdu University of Technology, Chengdu 610059, China 4 School of Land and Resources, China West Normal University, Nanchong 637009, China;
[email protected] (Z.C.);
[email protected] (M.L.);
[email protected] (Z.D.) 5 General Education Department, Sichuan Police College, Luzhou 646000, China;
[email protected] 6 College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China;
[email protected] * Correspondence:
[email protected]; Tel.: +86-28-84078705 Abstract: To measure and present urban size urban spatial forms, in solving problems in the rapid urbanization of China, urban territorial scope identification is essential. Although current commonly used methods can quantitatively identify urban territorial scopes to a certain extent, the results are displayed using a continuous and closed curve with medium- and low-resolution images. This makes the acquisition and interpretation of data challenging. In this paper, by extracting discretely dis- Citation: Kong, L.; He, Z.; Chen, Z.; tributed urban settlements, road intersections in OpenStreetMap (OSM), electronic maps, and urban Luo, M.; Du, Z.; Zhu, F.; He, L.